CALIBRATION PROCEDURE:-. Metering system, calibration procedure and the procedure of taking the meter readings could be modified from time to time as may be decided with mutual agreement.
CALIBRATION PROCEDURE:-. The dynamic compactness and dynamic bearing capacity measuring gauge must be calibrated by a competent calibrating laboratory after it reaches the 10.000 measurements, but at least in every second year. Before calibration the gauge must be supervised in a professional workshop appointed by the manufacturer, the necessary repairs must be executed and/or the components appointed by the manufacturer must be replaced (for example: the Teflon slip ring or the synthetic rubber spring element). If the spring element cannot be replaced, then it must be calibrated also with a procedure determined by the calibrating laboratory. It is advantageous to apply long-life metal plate spring. If the spring element is made of plastic, rubber or it must be replaced during calibration according to the manufacturer’s instruction, then the followings must be verified with a measurement executed in a special laboratory and/or an expertise: during the replacement period between 0-40°C it is independent from temperature within 5 % tolerance; the accepted aging of K=N/m spring resistance is smaller then 5 % per year; and the change of its rigidity. The accepted different owing to the change of the temperature must be verified with a loading of at least 500 mm/min on the new spring elements, at least up to 10 kN within 5% tolerance; and at the end of the time period prescribed for the replacement of the spring element further 5 % tolerance can be permitted on the measured spring element. If the deflectometer gauge must be repaired or any of its components must be replaced, then the deflectometer must be calibrated again. During the calibration procedure the values measured and indicated by the deflectometer must be checked by a measuring system being independent from the deflectometer. The calibration data are at least the set- up drop height, and the mass of the falling weight. The calibration procedure must include at least the followings: dynamic load measured under the centring ball of the spring element, loading time, travel during the loading time, and their accuracy. The calibration must be executed in an accredited laboratory, which requires the development and approval of a suitable calibration procedure. The calibration must be executed on the basis of the input data provided by the manufacturer and if necessary it must be corrected by modifying the drop height. The calibration must include a force measuring being independent from the gauge and an independent deformation me...
CALIBRATION PROCEDURE:-. Project manager shall consult with contract manager on the calibration targets and time period before proceeding with the calibration of the model. Project manager shall recommend to contract manager, measured or calculated targets to be used for the model calibration. Calibration targets shall then be selected by the contract manager in consultation with the project manager. Project manager shall do a further QA/QC on the agreed upon calibration targets and select the reliable ones out of the agreed upon calibration targets for final model calibration. If the number of final calibration targets differ from the number of agreed upon targets by more than 20 percent, the project manager shall consult with the contract manager (who may request for more calibration targets to be selected) before proceeding with the calibration. Project manager shall provide reasoning for eliminating agreed upon calibration targets from the final calibration. Project manager shall describe parameters adjusted during calibration of the model (for example, recharge, dispersivity, initial water quality (total dissolved solids) input, grid discretization, hydraulic conductivity, storativity, vertical hydraulic conductivity).
CALIBRATION PROCEDURE:-. The specific conductivity meter should be calibrated at the beginning of each sample run and checked before and after sampling against a conductivity standard within the range of expected water quality results. Measuring conductivity provides a measure of the dissolved salts in the water sample, such as salts used to deice roads. The calibration procedure involves exposing the sensor to a solution of known salinity. The salinity of the solution used for the calibration depends on whether the water to be monitored is fresh, brackish, or saltwater. In our district the water is exclusively fresh water, thus we use a conductivity standard that has a value of 0.1 mS/cm, in order that the calibration is performed near the range of expected values. The following procedure is used for calibration:
CALIBRATION PROCEDURE:-. The temperature sensor is built into the quarto conductivity/temperature cable and is not required to be calibrated nor is it available to do so. A weekly check is performed and checked against the NIST certified mercury thermometer. If the drift is found to be of a non-constant or excessive nature (see Table 5 for criterion), the sensor will be replaced, which means the entire cable will need to be replaced.
CALIBRATION PROCEDURE:-. Each analyser shall be calibrated as often as necessary to fulfil the accuracy requirements of this annex. The calibration method that shall be used is described in this appendix for the analysers indicated in paragraph 2.3. of appendix 1 to this annex.
CALIBRATION PROCEDURE:-. 4.1. The calibration procedure shall be carried out within one month preceding the emissions test. The instrument assembly shall be calibrated and calibration curves checked against standard gases. The same gas flow rates shall be used as when sampling exhaust.
